It's not just about money. It's about deconstructing the western culture and society. Art plays a huge role in providing cohesion and relating meaning in society and that's its main historical function. Aesthetics is downstream to ethics. When absolute objective truth is replaced with relativism and no real standards of the good or the beautiful apply you get random shit like dadaism, Pollock and other abominations of our modern and post-modern times.

To put it simply - ugly and meaningless art and architecture are a form of psy op siege warfare. And since it's a tool of cultural degeneration guess who's been pushing it the most?